What is Monkey Patches?

Monkey Patches is a technical utility mod designed to patch bugs and issues in other mods through the use of runtime patching. It is built for modpack developers and advanced users who need quick, modular fixes without waiting for upstream changes to be released.

Features

Targeted Mixin-Based Patching Monkey Patches allows you to inject small, scoped fixes into third-party mods by applying mixins at runtime. This enables developers to patch bugs, bypass crash conditions, or correct logic errors in dependencies without modifying the original mod’s source.
Non-Invasive and Configurable The mod is designed to be lightweight and non-intrusive. All patches are applied via mixin at load time, without replacing jar files or using coremod techniques. Each patch can be scoped to specific versions of the target mod, minimizing compatibility issues.
Focused Patch Modules Monkey Patches uses a modular internal structure, allowing you to clearly organize patches by mod or version. This makes it easy to document, isolate, and manage what you’re overriding.
Transparent Debugging Support Optional debug logging provides transparency for applied mixins and helps you verify that patches are correctly loaded and active. This is especially useful when debugging modpack launch issues.

How This Affects the User Experience

For modpack creators and technical users, Monkey Patches reduces downtime caused by known but unreleased bug fixes in popular mods. Instead of having to fork or wait for upstream patches, you can apply your own temporary fixes in a clean and trackable way.

For players, this results in more stable modpacks, fewer crashes, and fewer gameplay inconsistencies—especially in packs under active development or using snapshot mod versions.

Use Case Scenarios

Fixing a crash caused by a version-specific bug in another mod.
Overriding unsafe assumptions or edge case behavior that affect your modpack.
Ensuring compatibility between mods that were not originally designed to work together.
Temporarily patching issues before submitting a pull request or waiting on a new release.

Included Fixes

These fixes have been implemented in upstream repositories but are not yet available in stable or public builds. Monkey Patches provides a clean way to apply them in your modpack today.

Create Stuff 'N Additions Patches

Make gadgets and tanks fillable in Create spouts and anything else supporting standard Neoforge fluid handling (Link to Issue)

KubeJS Patches

Fix assumptions about concrete builder types in KubeJS that could cause ClassCastException when CustomBuilderObject instances are present in registries. (Link to Issue)